removed servlet dependency

pom.xml

@@ -42,16 +42,6 @@
 		<url>http://ci.xeiam.com/</url>
 	</ciManagement>
 
-	<dependencies>
-		<!-- only needed if using XCharts as part of a webapp -->
-		<dependency>
-			<groupId>javax.servlet</groupId>
-			<artifactId>javax.servlet-api</artifactId>
-			<version>3.0.1</version>
-			<scope>provided</scope>
-		</dependency>
-	</dependencies>
-
 	<build>
 		<plugins>
 			<!-- Ensure compilation is done under Java 6 in all environments -->

src/main/java/com/xeiam/xchart/ServletEncoder.java

-/**
- * Copyright 2011-2013 Xeiam LLC.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.xeiam.xchart;
-
-import java.awt.Graphics2D;
-import java.awt.image.BufferedImage;
-import java.io.IOException;
-
-import javax.imageio.ImageIO;
-import javax.servlet.ServletOutputStream;
-
-/**
- * A helper class to be used in conjuction with a Servlet for streaming a Chart to an HTTP client
- * 
- * @author timmolter
- */
-public final class ServletEncoder {
-
-  /**
-   * Constructor - Private constructor to prevent instantiation
-   */
-  private ServletEncoder() {
-
-  }
-
-  /**
-   * Streams a chart as a PNG file
-   * 
-   * @param out
-   * @param chart
-   * @throws IOException
-   */
-  public static void streamPNG(ServletOutputStream out, Chart chart) throws IOException {
-
-    BufferedImage lBufferedImage = new BufferedImage(chart.width, chart.height, BufferedImage.TYPE_INT_RGB);
-    Graphics2D lGraphics2D = lBufferedImage.createGraphics();
-    chart.paint(lGraphics2D);
-
-    ImageIO.write(lBufferedImage, "png", out);
-    out.close();
-  }
-}

src/test/java/com/xeiam/xchart/example/ChartServletExample.java

-/**
- * Copyright 2011-2013 Xeiam LLC.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.xeiam.xchart.example;
-
-import java.util.HashMap;
-import java.util.Map;
-import java.util.UUID;
-
-import javax.servlet.ServletException;
-import javax.servlet.ServletOutputStream;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import com.xeiam.xchart.Chart;
-import com.xeiam.xchart.QuickChart;
-import com.xeiam.xchart.ServletEncoder;
-
-/**
- * Generates, stores, and serves charts
- * 
- * @author timmolter
- */
-@javax.servlet.annotation.WebServlet(name = "ChartServlet", urlPatterns = { "/chart" }, asyncSupported = true)
-public class ChartServletExample extends HttpServlet {
-
-  private static Map<String, Chart> chartMap = new HashMap<String, Chart>();
-
-  @Override
-  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException {
-
-    String id = request.getParameter("id");
-
-    Chart chart = chartMap.get(id);
-
-    response.setContentType("image/png");
-    ServletOutputStream out = response.getOutputStream();
-
-    try {
-      ServletEncoder.streamPNG(out, chart);
-    } catch (Exception e) {
-      e.printStackTrace();
-    }
-
-    out.close();
-
-    chart = null;
-
-    chartMap.remove(id);
-  }
-
-  /**
-   * Generates a chart and puts it in chartMap
-   * 
-   * @return UUID uniquely identifying chart in the chartMap
-   */
-  public static String generateDummyChart() {
-
-    Chart chart = QuickChart.getChart("Sample Chart", "X", "Y", null, null, new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 });
-    String uuid = UUID.randomUUID().toString();
-    chartMap.put(uuid, chart);
-
-    return uuid;
-  }
-
-}